Environment: milieu / climate zone / depth range / distribution range
Ecologia
; acqua dolce; salmastro benthopelagico; pH range: 7.5 - 82.0; dH range: 10 - 30; non migratori. Subtropical; 17°C - 21°C (Ref. 13614)
South America: lower Uruguay, Laguna dos Patos, Negro, and Salado River basins; western drainages of Argentina and small coastal drainages of Uruguay and Argentina.
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.6 cm SL maschio/sesso non determinato; (Ref. 50894); 4.5 cm TL (female)
Spine dorsali (totale): 0; Raggi dorsali molli (totale): 8; Spine anali 0; Raggi anali molli: 10
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Male anal fin modified into an elongate genitallium (Ref. 205). Distinct pairing (Ref. 205).
Lucinda, P.H.F., 2003. Poeciliidae (Livebearers). p. 555-581. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brazil. (Ref. 50894)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Acquario: Commerciale
Informazioni ulteriori
BibliografiaAcquacolturaProfilo di acquacolturaVarietàGeneticaElectrophoresesEreditarietàMalattieElaborazioneNutrientsMass conversion
CollaboratoriImmaginiStamps, Coins Misc.SuoniCiguateraVelocitàModalità di nuotoArea branchialeOtolithsCervelliVista
Strumenti
Special reports
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Fonti Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00582 - 0.01799), b=3.16 (3.01 - 3.31), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Resilienza (Ref.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).